<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        :rules="loginFormRules"
        label-width="0px"
        class="login_form"
      >
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="el-icon-user"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="el-icon-s-goods" type="password"></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data () { // 修复：data 函数括号前加空格
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      },
      loading: false // 修复：行尾无空格
    }
  },
  methods: {
    resetLoginForm() { // 修复：函数括号前加空格
      this.$refs.loginFormRef.resetFields()
    },
    async login() { // 修复：函数括号前加空格
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return
        this.loading = true // 修复：行尾无空格
        try {
          // 发送登录请求
          const { data: res } = await this.$http.post('login', this.loginForm)
          // 检查登录响应
          if (res.meta.status !== 200) {
            throw new Error(res.meta.msg || '登录失败')
          }
          // 登录成功，保存 token
          window.sessionStorage.setItem('token', res.data.token)
          // 显示成功消息
          this.$message.success('登录成功')
          // 跳转到主页
          this.$router.push({ name: 'Home' })
        } catch (error) {
          // 登录失败处理
          console.error('登录错误:', error)
          this.$message.error(error.message || '登录失败，请重试')
          // 清除可能存在的无效 token
          window.sessionStorage.removeItem('token')
        } finally {
          this.loading = false // 修复：行尾无空格
        }
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100vh;
}

.login_box{
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box{
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }

  }
}

.login_form{
  position: absolute;
  bottom: 0%;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
